Abstract
Objective We evaluated functional results after stapedotomy in terms of the influence of preoperative hearing threshold. Study Design Case series and chart review. Subjects and Methods We classified 141 patients according to preoperative mean air-conduction threshold: 40 to 54 dB, group 1; 55 to 69 dB, group 2; and 70 to 89 dB, group 3. Speech discrimination scores also were noted. Results All groups showed significant improvement. The greatest increase in postoperative speech discrimination score was seen in group 3. Group 1 improved from moderate hearing loss (mean, 49 dB) to normal (mean, 24 dB); group 2, from moderately severe loss (mean, 61.2 dB) to mild (mean, 28 dB); and group 3, from severe loss (mean, 76.4 dB) to moderate (mean, 41.1 dB). Conclusion Success in treating otosclerosis does not depend on extent of preoperative hearing loss. Patients with severe loss improved to moderate, increasing the benefit from use of a hearing aid. The patients attained good auditory function, improving their quality of life.
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